DATA VISUALIZATION - WEEK 2 - ASSIGNMENT 1
1) DATA USED
GLOBAL TEMPERATURE ANOMANY MEANS
The above is the data provided for download under assignment instructions.
(download link)
Data is manipulated to convert to degree centigrade:
2) ANALYSIS
Plot 1
- From the first look, we can gather that the temperature rose across the globe, predominantly so between 1970-2014
- There is much fluctuation in the period 1920-1960.
- The Global fluctuation matches closely to the fluctuations in both the hemispheres. But, we are not sure if the fluctations in the hemispheres is uniform across certain regions or predominant across specific latitude bands
Plot 2
- It is apparent that the center region(around equator), of the Thermal map is painted green, which is around 0C . There is not much temperature difference fluctuation.
- But, if we observe the color varations at the top and bottom of the map, ie., at the poles, we can see the color-shifts.
>- If we observe closely, the viariations are more pronounced near the South pole compared to the North pole.
Plot 3
- This comparison of traces shows more clearly that the temperature difference varies drastically near poles, more so near South pole between 1910-1970. We can see that the green dotted line varies less compared to the orange and the yellow lines.
- We cannot predict with certainity how in future the temperature difference varies across regions, especially near poles. At least, we cannot predict for longer periods of time given the limited data we analised. But, for a short next half decade to decade we may with some certainity say that temperatures will be on rise. We need more data, both qualitatively and quantitatively to comment anything on Global Warming.